Boojum Tree, Cirio

Frost Tolerance: Hardy at least to 20°F (-7°C)

Sun Exposure: Full sun

Origin: Central Baja California (Mexico) and isolated spots in mainland Mexico

Growth Habits: Deciduous stem succulent tree, up to 50 feet (15 m)

Watering Needs: Moderate water when in leaf, little to no water when dormant.

Propagation: Seeds

The Boojum Tree on location in Baja California are an extremely bizarre spectacle. They have a conical shape with branchlets spread somewhat regularly around the trunk.

Blooming Habits:
The Boojum tree has bell-shaped cream to yellow tubular flowers borne in 16 inches panicles (40 cm), in late summer, on trees that are taller than 6 feet (1.8 m)

Propagation:
The Idria columnaris is propagated by seeds. The seedlings don't go dormant for a couple of year, they need to be protected against cold and drought. They still grow excessively slowly.